fix issue

apps/edr-freight-web/backoffice/src/components/contracts/gl-booking-form/total.ts

@@ -72,12 +72,19 @@ export function computeGlShipmentTotal(
           (i) => i.containerSize === line.containerSize && !i.isClearance,
         );
       if (rate) {
+        // A per-wagon rate bills the wagons this line occupies — two 20ft share
+        // one — not the box count. Mirrors the API's base-freight line so the
+        // quote matches the invoice.
+        const billedQty =
+          rate.unit === "per_wagon"
+            ? Math.ceil(qty * (line.containerSize === "40ft" ? 1 : 0.5))
+            : qty;
         lines.push({
           label: rate.label,
           unitPrice: rate.unitPrice,
           unit: rate.unit,
-          quantity: qty,
-          amount: rate.unitPrice * qty,
+          quantity: billedQty,
+          amount: rate.unitPrice * billedQty,
         });
       }
       hazardTotalQty += line.hazardousQuantity;